Securities - Schedule of Amortized Cost, Estimated Fair Value, and Allowance for Securities Credit Losses of Debt Securities Available-for-Sale and Held-to-Maturity (Details) - USD ($)	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Securities Financing Transaction [Line Items]
Available-for-sale, amortized cost	$ 780,079,000	$ 503,404,000
Available-for-sale, gross unrealized gains	194,000	1,000
Available-for-sale, gross unrealized losses	(26,381,000)	(45,757,000)
Available-for-sale, fair value	753,892,000	457,648,000
Allowance for Securities Credit Losses	0	0
Amortized Cost	1,160,868,000	1,222,267,000
Held-to-maturity, gross unrealized gains	1,553,000	1,244,000
Held-to-maturity, gross unrealized losses	(93,983,000)	(113,470,000)
Debt securities held-to-maturity	1,068,438,000	1,110,041,000
Allowance for Securities Credit Losses	(1,133,000)	(1,128,000)	$ (1,467,000)
Total, amortized cost	1,940,947,000	1,725,671,000
Total, gross unrealized gains	1,747,000	1,245,000
Total, gross unrealized losses	(120,364,000)	(159,227,000)
Total, estimated fair value	1,822,330,000	1,567,689,000
Unrecognized losses	1,800,000	2,300,000
U.S. government and agency obligations
Securities Financing Transaction [Line Items]
Available-for-sale, amortized cost	66,490,000	87,648,000
Available-for-sale, gross unrealized gains	0	1,000
Available-for-sale, gross unrealized losses	(5,796,000)	(7,635,000)
Available-for-sale, fair value	60,694,000	80,014,000
Allowance for Securities Credit Losses	0	0
Corporate debt securities
Securities Financing Transaction [Line Items]
Available-for-sale, amortized cost	10,096,000	8,928,000
Available-for-sale, gross unrealized gains	11,000	0
Available-for-sale, gross unrealized losses	(981,000)	(756,000)
Available-for-sale, fair value	9,126,000	8,172,000
Allowance for Securities Credit Losses	0	0
Amortized Cost	69,809,000	54,880,000
Held-to-maturity, gross unrealized gains	391,000	380,000
Held-to-maturity, gross unrealized losses	(3,941,000)	(1,765,000)
Debt securities held-to-maturity	66,259,000	53,495,000
Allowance for Securities Credit Losses	(987,000)	(1,059,000)
Asset-backed securities
Securities Financing Transaction [Line Items]
Available-for-sale, amortized cost	295,796,000	296,222,000
Available-for-sale, gross unrealized gains	0	0
Available-for-sale, gross unrealized losses	(4,252,000)	(19,349,000)
Available-for-sale, fair value	291,544,000	276,873,000
Allowance for Securities Credit Losses	0	0
Agency residential
Securities Financing Transaction [Line Items]
Available-for-sale, amortized cost	298,107,000
Available-for-sale, gross unrealized gains	183,000
Available-for-sale, gross unrealized losses	(97,000)
Available-for-sale, fair value	298,193,000
Allowance for Securities Credit Losses	0
Amortized Cost	765,632,000	849,701,000
Held-to-maturity, gross unrealized gains	901,000	795,000
Held-to-maturity, gross unrealized losses	(70,040,000)	(83,302,000)
Debt securities held-to-maturity	696,493,000	767,194,000
Allowance for Securities Credit Losses	0	0
Agency commercial
Securities Financing Transaction [Line Items]
Available-for-sale, amortized cost	109,590,000	110,606,000
Available-for-sale, gross unrealized gains	0	0
Available-for-sale, gross unrealized losses	(15,255,000)	(18,017,000)
Available-for-sale, fair value	94,335,000	92,589,000
Allowance for Securities Credit Losses	0	0
Amortized Cost	82,734,000	32,127,000
Held-to-maturity, gross unrealized gains	10,000	23,000
Held-to-maturity, gross unrealized losses	(3,678,000)	(1,189,000)
Debt securities held-to-maturity	79,066,000	30,961,000
Allowance for Securities Credit Losses	0	0
State, municipal and sovereign debt obligations
Securities Financing Transaction [Line Items]
Amortized Cost	222,009,000	260,249,000
Held-to-maturity, gross unrealized gains	251,000	46,000
Held-to-maturity, gross unrealized losses	(14,550,000)	(24,940,000)
Debt securities held-to-maturity	207,710,000	235,355,000
Allowance for Securities Credit Losses	(39,000)	(60,000)
Non-agency commercial
Securities Financing Transaction [Line Items]
Amortized Cost	20,684,000	25,310,000
Held-to-maturity, gross unrealized gains	0	0
Held-to-maturity, gross unrealized losses	(1,774,000)	(2,274,000)
Debt securities held-to-maturity	18,910,000	23,036,000
Allowance for Securities Credit Losses	(107,000)	(9,000)
Total mortgage-backed securities
Securities Financing Transaction [Line Items]
Available-for-sale, amortized cost	407,697,000
Available-for-sale, gross unrealized gains	183,000
Available-for-sale, gross unrealized losses	(15,352,000)
Available-for-sale, fair value	392,528,000
Allowance for Securities Credit Losses	0
Amortized Cost	869,050,000	907,138,000
Held-to-maturity, gross unrealized gains	911,000	818,000
Held-to-maturity, gross unrealized losses	(75,492,000)	(86,765,000)
Debt securities held-to-maturity	794,469,000	821,191,000
Allowance for Securities Credit Losses	$ (107,000)	$ (9,000)